ChicBuds Portable Crystal Fauvette Platinum Edition Speaker for MP3, iPod, iPhone, CD Player, DVD Player, Laptop Plays for up to 4 hours on a single charge. Great for travel. Built-in lithium-ion rechargeable battery. Cordless. Connects to any device with a standard 3.5mm stereo jack Awesome sound in a little package. Clarity, incredible volume, and clear distortion-free sound. Stereo cable and USB cable included. Compatible with iPods, iPhones, MP3 Player, Computers